ADU Alliance

Orange County, CA ADU Experts

Maximize Property Value In Orange County, CA, With The Expertise Of ADU Alliance, With Innovative ADU Solutions, Creating a Valuable Addition To Your Property.

Maximize Property Value In Orange County, CA With The Expertise Of ADU Alliance, With Innovative ADU Solutions, Creating a Valuable Addition To Your Property.

About us

ADU Alliance: Your Trusted ADU Builders in Orange County, CA

We are the trusted Accessory Dwelling Unit (ADU) and Junior Accessory Dwelling Unit (JADU) experts in Orange County, CA. With years of experience and a passion for transforming properties, we specialize in helping homeowners unlock the full potential of their properties through smart home ADU. Our vision is to enhance ADU living space, maximize property value, and provide new opportunities for Orange County, CA homeowners .

“ADU Alliance – Building Dreams Together”

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ADU Services



Embark on the journey of building your dream ADU with ADU Alliance. Our experienced team combines expert craftsmanship with a commitment to quality.

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ADU Remodeling

Revitalize your ADU with our remodeling services. Enhance your ADU's functionality and style, transforming your space into a haven of comfort and elegance.

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Immerse yourself in spaces that inspire. Our architectural expertise brings innovation to your ADU project. With a creative design that harmonizes with you.

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Unleash your creativity with our personalized ADU design service. We bring your ideas to life, creating customized interiors that reflect your unique taste and style.

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Our team streamlines the permitting process, handling all the necessary paperwork and ensuring efficient solutions for permit approval.

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Ensure compliance and protect your investment with ADU Alliance. Watch ADU meets all regulatory requirements and stands the test of time.

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Get personalized solutions and expert advice for your ADU project with ADU Alliance. Benefit from our expertise, and let us empower you.

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Our educational resources provide valuable insights and information for ADU owners. Stay updated on the latest trends, regulations, and designs

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Our Range of ADUs


JADUs provide a compact and self-contained living area that includes a bedroom, bathroom, and kitchenette.

detached ADU

Detached ADU

A separate living space located on your property, providing privacy and standalone experience.

garage conversion ADU

Garage ADU

Convert existing garages into ADUs that can serve as a secondary dwelling unit or home office.

above garage ADU

Above Garage

Seamlessly integrates your property's architectural style and meets your specific needs. Offer cozy space to studios.

junior ADU

Granny Flat

Self-contained living area on your property, providing a private sanctuary for elderly parents or guests.

detached ADU

In Law Unit

Designed to accommodate the needs of aging parents or visitng family members while maintaining privacy.

garage conversion ADU

ADU Cottage

Charming living space that combines comfort, style, and functionality. Envision a guest cottage, or a sanctuary,

above garage ADU

House Carriage

Combining the charm of a traditional home with the freedom of mobility, allowing you to travel and explore.

How ADU Works

At ADU Alliance, we believe that every homeowner deserves to enhance their property. Discover the financial freedom, lifestyle enhancements, and increased property value that ADUs bring. Join the ADU movement and let ADU Alliance be your trusted partner in transforming your home. Take the first step today by exploring our services and schedule a consultation with our team.

how ADU works (3)

Our ADU Projects

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ADUs in Aliso Viejo